Git is a version control system which is used to control the version of any code or project. Now, what is the version? when you develop any android application or any website, you do not spend 3 or 4 years making that website or application the best. You should make an application or website in little time then you should add constantly some features to make it better. These improvements are called versions. Sometimes versions do not work well so we have to roll back to old versions. To control these versions we use git as a version control system. Git is used to controlling versions on local computers.

GitHub is a platform where anyone can put their project or code of a website or application. In local computers, there is a chance that code can be deleted but in GitHub code will be safe. Anyone can contribute to your code to make it better in GitHub. If anyone wants to verify your work then this can be done in GitHub.